International Telecommunications Union
Radio RegulationsARTICLE 25

Amateur services

Section I
-- Amateur service

25.1 §1 Radiocommunications between amateur
stations of different countries shall be permitted unless the administration of
one of the countries concerned has notified that it objects to such radiocommunications.

25.2 §2 1) Transmissions
between amateur stations of different countries shall be limited to
communications incidental to the purposes of the amateur service, as defined in
No.1.56
and to remarks of a personal character.

25.2A 1bis) Transmissions between amateur
stations of different countries shall not be encoded for the purpose of
obscuring their meaning, except for control signals exchanged between earth
command stations and space stations in the amateur-satellite service.

25.3 2) Amateur stations may be used for transmitting
international communications on behalf of third parties only in case of
emergencies or disaster relief. An administration may determine the
applicability of this provision to amateur stations under its jurisdiction.

25.4

25.5 §3 1) Administrations
shall determine whether or not a person seeking a licence to operate an amateur
station shall demonstrate the ability to send and receive texts in Morse code
signals.

25.6 2) Administrations shall verify the operational and
technical qualifications of any person wishing to operate an amateur station. Guidance
for standards of competence may be
found in the most recent version of Recommendation ITU-R M.1544.

25.7 §4 The maximum power of amateur
stations shall be fixed by the administrations concerned.

25.8 §5 1) All
pertinent Articles and provisions of the Constitution, the Convention and of
these Regulations shall apply to amateur stations.

25.9 2) During the course of their transmissions, amateur stations
shall transmit their call sign at short intervals.

25.9A Administrations are encouraged
to take the necessary steps to allow amateur stations to prepare for and meet
communication needs in support of disaster relief.

25.9B An administration may
determine whether or not to permit a person who has been granted a licence to
operate an amateur station by another administration, to operate an amateur
station while that person is temporarily in its territory, subject to such
conditions or restrictions it may impose.

Section II
-- Amateur-satellite service

25.10 § 6 The provisions of Section I of this
Article shall apply equally, as appropriate, to the amateur-satellite service.

25.11 §7 Administrations authorizing space
stations in the amateur-satellite service shall ensure that sufficient earth
command stations are established before launch to ensure that any harmful
interference caused by emissions from a station in the amateur-satellite
service can be terminated immediately (seeNo. 22.1).